National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Characterization and Recovery of Mercury from Electrical Manufacturing Wastes by Thermal Desorption.

PB95111712

Publication Date	1994
Personal Author	Dewing, H. H.; Schluter, R. B.
Page Count	15
Abstract	The U.S. Bureau of Mines characterized mercury containing wastes and used a thermal-desorption process to remove and recover the contained mercury (Hg). The wastes were generated by an electrical-parts plant engaged in the assembly of Hg-containing switches and contained phenolic resins and paper insulating materials mixed with soil. The average Hg content was 396 ppm. Numerous characterization tests showed the Hg was tightly absorbed and could not be removed or concentrated by leaching or gravity separation techniques. Mercury recovery was over 99.99 pct of the desorbed Hg. Thermal-desorption processes have had wide application to many Hg-containing wastes, and historical experience in Hg mining has demonstrated the potential cost effectiveness.
Keywords	Mercury(Metal) Thermal recovery methods Desorption Waste processing Hazardous materials Metal recycling Electric devices Electric equipment Soil pollution Separation processes Technology utilization Thermal desorption
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control
Corporate Authors	Bureau of Mines, Rolla, MO. Rolla Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199502

Characterization and Recovery of Mercury from Electrical Manufacturing Wastes by Thermal Desorption.

Characterization and Recovery of Mercury from Electrical Manufacturing Wastes by Thermal Desorption.
PB95111712

Publication Date	1994
Personal Author	Dewing, H. H.; Schluter, R. B.
Page Count	15
Abstract	The U.S. Bureau of Mines characterized mercury containing wastes and used a thermal-desorption process to remove and recover the contained mercury (Hg). The wastes were generated by an electrical-parts plant engaged in the assembly of Hg-containing switches and contained phenolic resins and paper insulating materials mixed with soil. The average Hg content was 396 ppm. Numerous characterization tests showed the Hg was tightly absorbed and could not be removed or concentrated by leaching or gravity separation techniques. Mercury recovery was over 99.99 pct of the desorbed Hg. Thermal-desorption processes have had wide application to many Hg-containing wastes, and historical experience in Hg mining has demonstrated the potential cost effectiveness.
Keywords	Mercury(Metal) Thermal recovery methods Desorption Waste processing Hazardous materials Metal recycling Electric devices Electric equipment Soil pollution Separation processes Technology utilization Thermal desorption
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control
Corporate Authors	Bureau of Mines, Rolla, MO. Rolla Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199502